The Beatles: "Her Majesty" from Abbey Road

The original 1969 vinyl UK version does not list "Her Majesty" on the back cover or record, whereas some US copies feature one or the other, or both. The song cuts one note short because it was originally intended to come between "Mean Mr. Mustard" and "Polythene Pam", but Paul didn't like the way it sounded so it was edited out and recycled to the end of the tape, where it was left. Upon playback, Paul like how it sounded at the very end of the record, and that's where it stayed.

How to find it: Vinyl version: Play through the final track of side 2. CD version: Go directly to track #17